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119 lines
4.1 KiB
119 lines
4.1 KiB
/* |
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* Copyright (C) 2010 Bruno Randolf <[email protected]> |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#ifndef ANI_H |
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#define ANI_H |
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#include "../ath.h" |
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enum ath5k_phy_error_code; |
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/* these thresholds are relative to the ATH5K_ANI_LISTEN_PERIOD */ |
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#define ATH5K_ANI_LISTEN_PERIOD 100 |
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#define ATH5K_ANI_OFDM_TRIG_HIGH 500 |
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#define ATH5K_ANI_OFDM_TRIG_LOW 200 |
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#define ATH5K_ANI_CCK_TRIG_HIGH 200 |
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#define ATH5K_ANI_CCK_TRIG_LOW 100 |
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/* average beacon RSSI thresholds */ |
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#define ATH5K_ANI_RSSI_THR_HIGH 40 |
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#define ATH5K_ANI_RSSI_THR_LOW 7 |
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/* maximum available levels */ |
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#define ATH5K_ANI_MAX_FIRSTEP_LVL 2 |
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#define ATH5K_ANI_MAX_NOISE_IMM_LVL 1 |
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/** |
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* enum ath5k_ani_mode - mode for ANI / noise sensitivity |
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* |
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* @ATH5K_ANI_MODE_OFF: Turn ANI off. This can be useful to just stop the ANI |
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* algorithm after it has been on auto mode. |
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* @ATH5K_ANI_MODE_MANUAL_LOW: Manually set all immunity parameters to low, |
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* maximizing sensitivity. ANI will not run. |
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* @ATH5K_ANI_MODE_MANUAL_HIGH: Manually set all immunity parameters to high, |
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* minimizing sensitivity. ANI will not run. |
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* @ATH5K_ANI_MODE_AUTO: Automatically control immunity parameters based on the |
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* amount of OFDM and CCK frame errors (default). |
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*/ |
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enum ath5k_ani_mode { |
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ATH5K_ANI_MODE_OFF = 0, |
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ATH5K_ANI_MODE_MANUAL_LOW = 1, |
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ATH5K_ANI_MODE_MANUAL_HIGH = 2, |
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ATH5K_ANI_MODE_AUTO = 3 |
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}; |
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/** |
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* struct ath5k_ani_state - ANI state and associated counters |
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* @ani_mode: One of enum ath5k_ani_mode |
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* @noise_imm_level: Noise immunity level |
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* @spur_level: Spur immunity level |
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* @firstep_level: FIRstep level |
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* @ofdm_weak_sig: OFDM weak signal detection state (on/off) |
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* @cck_weak_sig: CCK weak signal detection state (on/off) |
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* @max_spur_level: Max spur immunity level (chip specific) |
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* @listen_time: Listen time |
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* @ofdm_errors: OFDM timing error count |
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* @cck_errors: CCK timing error count |
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* @last_cc: The &struct ath_cycle_counters (for stats) |
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* @last_listen: Listen time from previous run (for stats) |
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* @last_ofdm_errors: OFDM timing error count from previous run (for tats) |
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* @last_cck_errors: CCK timing error count from previous run (for stats) |
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* @sum_ofdm_errors: Sum of OFDM timing errors (for stats) |
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* @sum_cck_errors: Sum of all CCK timing errors (for stats) |
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*/ |
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struct ath5k_ani_state { |
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enum ath5k_ani_mode ani_mode; |
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/* state */ |
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int noise_imm_level; |
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int spur_level; |
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int firstep_level; |
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bool ofdm_weak_sig; |
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bool cck_weak_sig; |
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int max_spur_level; |
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/* used by the algorithm */ |
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unsigned int listen_time; |
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unsigned int ofdm_errors; |
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unsigned int cck_errors; |
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/* debug/statistics only: numbers from last ANI calibration */ |
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struct ath_cycle_counters last_cc; |
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unsigned int last_listen; |
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unsigned int last_ofdm_errors; |
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unsigned int last_cck_errors; |
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unsigned int sum_ofdm_errors; |
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unsigned int sum_cck_errors; |
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}; |
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void ath5k_ani_init(struct ath5k_hw *ah, enum ath5k_ani_mode mode); |
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void ath5k_ani_mib_intr(struct ath5k_hw *ah); |
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void ath5k_ani_calibration(struct ath5k_hw *ah); |
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void ath5k_ani_phy_error_report(struct ath5k_hw *ah, |
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enum ath5k_phy_error_code phyerr); |
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/* for manual control */ |
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void ath5k_ani_set_noise_immunity_level(struct ath5k_hw *ah, int level); |
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void ath5k_ani_set_spur_immunity_level(struct ath5k_hw *ah, int level); |
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void ath5k_ani_set_firstep_level(struct ath5k_hw *ah, int level); |
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void ath5k_ani_set_ofdm_weak_signal_detection(struct ath5k_hw *ah, bool on); |
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void ath5k_ani_set_cck_weak_signal_detection(struct ath5k_hw *ah, bool on); |
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void ath5k_ani_print_counters(struct ath5k_hw *ah); |
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#endif /* ANI_H */
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